New Guinea Impatiens plant named ‘Duessphotpk’

ABSTRACT

A new and distinct cultivar of  Impatiens  plant named ‘Duessphotpk’ characterized by its upright, outwardly spreading and mounding plant habit; vigorous growth habit; freely branching habit; dark green-colored leaves; early and freely flowering habit; hot pink-colored flowers; and good garden performance.

Botanical designation: Impatiens×hybrida.

Cultivar denomination: ‘DUESSPHOTPK’.

CROSS-REFERENCED TO CLOSELY RELATED APPLICATIONS

Title: New Guinea Impatiens Plant Named ‘Duessplav’

Applicant: Ruth Kobayashi

Filed: Sep. 8, 2015; concurrently with this application having application Ser. No. 14/756,461

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of New Guinea Impatiens plant, botanically known as Impatiens×hybrida and hereinafter referred to by the name ‘Duessphotpk’.

The new Impatiens plant is a product of a planned breeding program conducted by the Inventor in Encinitas, Calif. The objective of the breeding program is to create new uniform Impatiens plants with numerous attractive flowers and good garden performance.

The new Impatiens plant is a naturally-occurring whole plant mutation of a proprietary selection of Impatiens×hybrida identified as code number NN-1166-X0000, not patented. The new Impatiens plant was discovered and selected by the Inventor as a single flowering plant from within a population of plants of the parent selection in a controlled greenhouse environment in Encinitas, Calif. on Dec. 8, 2014.

Asexual reproduction of the new Impatiens plant by terminal vegetative cuttings in a controlled greenhouse environment in Encinitas, Calif. since Jan. 9, 2015 has shown that the unique features of this new Impatiens plant are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

Plants of the new Impatiens have not been observed under all possible combinations of environmental conditions and cultural practices. The phenotype may vary somewhat with variations in environmental conditions such as temperature and light intensity without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Duessphotpk’. These characteristics in combination distinguish ‘Duessphotpk’ as a new and distinct Impatiens plant:

-   -   1. Upright, outwardly spreading and mounding plant habit.     -   2. Vigorous growth habit.     -   3. Freely branching habit.     -   4. Dark green-colored leaves.     -   5. Early and freely flowering habit.     -   6. Hot pink-colored flowers.     -   7. Good garden performance.

Plants of the new Impatiens can be compared to plants of the parent selection. Plants of the new Impatiens differ primarily from plants of the parent selection in flower color as plants of the parent selection have dark lavender pink-colored flowers.

Plants of the new Impatiens can be compared to plants of Impatiens×hybrida ‘Duessplav’, disclosed in a U.S. Plant Patent application filed concurrently having application Ser. No. 14/756,461. Plants of the new Impatiens differ primarily from plants of ‘Duessplav’ in flower color as plants of ‘Duessplav’ have light violet-colored flowers with red purple-colored petal central stripes and bases.

Plants of the new Impatiens can be compared to plants of Impatiens×hybrida ‘Sakimp006’, disclosed in U.S. Plant Pat. No. 19,501. In side-by-side comparisons conducted in Encinitas, Calif., plants of the new Impatiens differed primarily from plants of ‘Sakimp006’ in the following characteristics:

-   -   1. Plants of the new Impatiens were more compact than plants of         ‘Sakimp006’.     -   2. Plants of the new Impatiens and ‘Sakimp006’ differed in         flower color as plants of ‘Sakimp006’ have lavender-colored         flowers.

Plants of the new Impatiens can also be compared to plants of Impatiens×hybrida ‘SAKIMP017’, disclosed in U.S. Plant Pat. No. 21,753. In side-by-side comparisons conducted in Encinitas, Calif., plants of the new Impatiens differed primarily from plants of ‘SAKIMP017’ in the following characteristics:

-   -   1. Plants of the new Impatiens were not as compact as plants of         ‘SAKIMP017’.     -   2. Plants of the new Impatiens and ‘SAKIMP017’ differed in         flower color as plants of ‘SAKIMP017’ have deep rose-colored         flowers.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying colored photographs illustrate the overall appearance of the new Impatiens plant showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Impatiens plant.

The photograph at the bottom of the sheet is a side perspective view of a typical flowering plant of ‘Duessphotpk’ grown in a container.

The photograph at the top of the sheet is a close-up view of a typical flowering plant of ‘Duessphotpk’.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photographs and following observations, measurements and values describe plants grown during the summer in 15.25-cm containers in a polyethylene-covered greenhouse in Encinitas, Calif. and under cultural practices typical of commercial New Guinea Impatiens production. During the production of the plants, day temperatures ranged from 24° C. to 27° C., night temperatures averaged 18° C. and light levels averaged 4,000 foot-candles. Plants were ten weeks old when the photographs and description were taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 2007 Edition, except where general terms of ordinary dictionary significance are used.

-   Botanical classification: Impatiens×hybrida ‘Duessphotpk’. -   Parentage: Naturally-occurring whole plant mutation of a proprietary     selection of Impatiens×hybrida identified as code number     NN-1166-X0000, not patented. -   Propagation:     -   -   Type.—By terminal cuttings.         -   Time to initiate roots, summer and winter.—About five to             seven days at day temperatures about 27° C. and night             temperatures about 20° C.         -   Time to produce a rooted young plant, summer and             winter.—About three weeks at day temperatures about 27° C.             and night temperatures about 20° C.         -   Root description.—Fine, fibrous; white in color, actual             color of the roots is dependent on substrate composition,             water quality, fertilizer type and formulation, substrate             temperature and physiological age of roots.         -   Rooting habit.—Freely branching; dense. -   Plant description:     -   -   Plant and growth habit.—Upright to outwardly spreading and             mounding plant habit; freely branching habit with about 16             lateral branches developing per plant; vigorous growth             habit.         -   Plant height.—About 19 cm.         -   Plant diameter.—About 40 cm. -   Lateral branch description:     -   -   Length.—About 17.8 cm.         -   Diameter.—About 1 cm.         -   Internode length.—About 4.6 cm.         -   Strength.—Strong.         -   Aspect.—Initially upright to outwardly spreading.         -   Texture.—Smooth, glabrous.         -   Color.—Close to 187A. -   Leaf description:     -   -   Arrangement.—Opposite or in whorls; simple.         -   Length.—About 9.5 cm.         -   Width.—About 4.5 cm.         -   Shape.—Elliptical.         -   Apex.—Acuminate.         -   Base.—Attenuate.         -   Margin.—Serrulate with ciliation.         -   Texture, upper and lower surfaces.—Smooth, glabrous.         -   Luster, upper surface.—Somewhat glossy.         -   Luster, lower surface.—Matte.         -   Venation pattern.—Pinnate; arcuate.         -   Color.—Developing leaves, upper surface: Close to 147A.             Developing leaves, lower surface: Close to 183B. Fully             opened leaves, upper surface: Darker than 147A; venation,             close to 185C. Fully opened leaves, lower surface: Slightly             more grey than 148A; venation, close to 185A.         -   Petiole length.—About 1.5 cm.         -   Petiole diameter.—About 3 mm.         -   Petiole texture, upper and lower surfaces.—Smooth, glabrous.         -   Petiole color, upper and lower surfaces.—Close to 183B. -   Flower description:     -   -   Flower type and flowering habit.—Single rounded and flat             axillary flowers; freely flowering habit, typically about 50             flower buds and open flowers per plant at one time; flowers             positioned above and beyond the foliar plane, flowers             typically face mostly upright to outwardly.         -   Flower longevity.—Flowers typically last about one to two             days on the plant under greenhouse conditions; petals             self-cleaning, gynoecium persistent.         -   Fragrance.—None detected.         -   Natural flowering season.—Year-round under greenhouse             conditions; in the garden, flowering from spring until fall             in temperate regions; early flowering habit, plants             typically begin flowering about eight weeks after planting.         -   Flower buds.—Length: About 2 cm. Diameter: About 1.4 cm.             Shape: Ovoid, pointed. Color: Close to N74C.         -   Flower diameter.—About 5 cm to 5.2 cm.         -   Flower depth.—About 1.8 cm.         -   Petals.—Quantity and arrangement: Five per flower in a             single whorl; one upper banner petal, two lateral petals and             two lower petals. Length, banner petal: About 2.5 cm. Width,             banner petal: About 3.2 cm. Length, lateral petals: About             2.8 cm. Width, lateral petals: About 2.2 cm. Length, lower             petals: About 3.4 cm. Width, lower petals: About 2.5 cm.             Shape: Cordate. Apex: Cordate; emarginate. Base: Attenuate.             Margin: Entire. Texture, upper and lower surfaces: Smooth,             glabrous; velvety. Color: When opening, upper surface: Close             to N74A. When opening, lower surface: Close to N74C. Fully             opened, upper surface: Close to N74A; central stripes             (especially on banner petals) and towards the base, close to             60B; color does not change with development. Fully opened,             lower surface: Close to N74B to N74C; color does not change             with development.         -   Sepals.—Quantity and arrangement: Three in a single whorl;             one modified into an elongated spur. Length: About 2 cm.             Width: About 5 mm. Shape: Narrowly deltoid. Apex: Apiculate.             Base: Attenuate. Margin: Entire. Texture, upper and lower             surfaces: Smooth, glabrous. Color, upper and lower surfaces:             Close to 145C. Spur length: About 4.7 cm. Spur diameter: At             the flower, about 3 mm; towards the apex, about 1 mm. Spur             texture: Smooth, glabrous. Spur color: Close to 145C.         -   Peduncles.—Length: About 4 cm. Diameter: About 2 mm to 3 mm.             Angle: About 30° to 45° from stem axis. Strength: Strong;             flexible. Texture: Smooth, glabrous. Color: Close to 146C.         -   Reproductive organs.—Stamens: Quantity: Five fused at             anthers; filaments free. Filament length: Less than 1 mm.             Filament color: Close to 1D. Anther size: About 4 mm by             5 mm. Anther shape: Oblong. Anther color: Close to 71C.             Pollen amount: Moderate. Pollen color: Close to 158B.             Pistils: Quantity per flower: One. Pistil length: About             5 mm. Stigma shape: Rounded. Stigma color: Close to 182D.             Style color: Close to 146B. Ovary color: Close to 146B.         -   Seeds and fruits.—Seed and fruit production has not been             observed on plants of the new Impatiens. -   Disease & pest resistance: Plants of the new Impatiens have not been     observed to be resistant to pathogens and pests common to Impatiens     plants. -   Garden performance: Plants of the new Impatiens have been observed     to have good garden performance and tolerate temperatures ranging     from about 5° C. to about 40° C. 

It is claimed:
 1. A new and distinct Impatiens plant named ‘Duessphotpk’ as illustrated and described. 